Carbureter-control mechanism for motor-vehicles.



PATENTED JUNE` 19, 1906.

O. SCHMIDT. y

yOARBUTVOTTR CONTROL MEOHANISM TOR MOTOR VEHICLES.

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` APPLICATION HLD MA11.10.71905I a SHEETS-SHEET a.

CHARLES SCHMInfr, or irs-Tiroir,l MICHIGAN, ',ASSIGNoaf-'ro I "Acnoiia'nMoron- CAR, COMPANY, or mirroir, MICHIGAN, A CORPORATION r or WESTv,vi-Renais.,v

Be it known that i, CHARLES- Somma a V v citizen'of theRepublicofFrance, and a resident .of Detroit, v,Wayne county, State of and inmeans for control .and otherwise the flow 'ofmixture from the Michi an,have `invented certain. new and usefu Improvements in Carbureter-ControlMechanism for Motor-Vehicles, of which the following is a specification."j 4 v This invention'rcomprises various'improvements in carbureters forhydrocarbon-en,-l

gines such as are'used on motor-vehicles, automatically carbureter tothe engine. Itis often desirable on account of varying atmospheric andcli,- niaticconditions to` vary the' quantity, of air which is admittedto the mixingchamber,

v and it is also desirable'to be able to vary the quantityT of mixtureof air and hydrocarbon. passing to thev engine. v

The present invention relates to these `regulating devices, includingmeans for` varying or throttling they mixture passing to the engine bothautomaticall and manually., 25

vThe invention will e fully described in connection with the'accompanying drawings, inwhich-f ,1 Figure 1 is a side view, partly insection, of .the IneansV for regulatin the mixture-valve. Fig. 2is asimilar view il ustrating a different f lform of regulating means. Fig.3 is an enlargedsectional view o-a portion of the mech-l anism shown inFig. 1. Fig. 4 is a front view of the same lookin in .the direction ofthe arrow '4, Fig. 3. ig. 5 is a section on the line 55, Fig. 3. Fig. 6is a side r elevation of the caibureter,` the iioat=chamber` -being'shown in section; and Fig. 7 is a section ony miXturecontrollin valve,jWhich is located in thejpipe 17, lea ing from thel carbureter A to theengine. *(Not shown.) Thevalve 1'6 is operated by means of an arm 18 anda link 19, theother end of which is-'connected to-a lever 2 0. Means areprovided for setting the lever 20, and consequentlythevalve 16, ina.A

l Bpecrvcation 'of Letters Patent. r r ,Appuomaa'aiaiitmh 19.1905, snaiiro. 249.441.

Patented .nine 19,1906.

'given position, which may be termed a normal position, and additionalmeans are provided for automatically controlling the valve to varyy itsposition fromthe normal-accord-I ing tothe speed of the vehicle or theen e, suchmeans bein preferably controlled y a governor".l Ad 'tionalmanually-operatedv means are also provided for shifting the valvefrom-the normal when it is desired to temporarilyincrease or decreasethe speed ofthe vehicle lby opening'l or closingthe-throttle.l

:Means for Setting the valve wat any desired normal position will firstbe described.

Referring to FiA s. v1,3, 4.,.and5, 21 indicates a lever` Whic isrigidly connectedto a stud 22 and retained in position thereon by a nut23.- The stud 22 is also rigidly connected toa sleeve 24, which rotatesin ,theupper end of the tube 14and is 26, aving a spiral threadadaptedtoengage the groove 25. The lower en of the rod 26 l* lprovided with aspiral roove 25. Within t e'sleeve 24 is a rod is provided-with ahead27, 'and a pin 28 f through the slots 29 in the ,tube 14 and isengaged with a sleeve 30, sliding u on the outer surface of the tube 14.'Wlien' t e lever 21 is passes' transverse/ly through said head andturned relativelyto theA handle 13, it'rotates the'sleeve 24 relativelyto the tube 14 and by i meansyof the spiral roove 25'it raises or lowersthe .rod 26 an the sleeve'30. Suitable means, such as the rack 31 andthe tooth 32, are provided for holding the lever 21 in any'desiredadjustment. As shown, the lever has` a spring-arm which normall ,holdsthe tooth in engagement with the rac 4The sleeve 30 has acircumferential groove 33,

36 indicates an elbow-lever, which is pivotally carried upon the' upperend'of a link 37, which. j link is su ported on a stationa bracket 38.lHorizontal arms 35 of thee -F bow-lever 36I are connected to thetrunnions ver 20, and it is' norma in a given relaen agement with thelever 20 by'nuts 41.` It wi l be evident that a movement of the leverwhich is fitted a ring 34, having trunnions.

or arm 21 raise or lower the rod 26 and. the sleeve 3Q. This movementwill rockthe" of the ring 34, while a depending arm of saidl 'f lever 36is connected with a rod 39. The rod 39 passes through an e e or openingin the lelly hel IOC tion to said lev'erby means of opposin springs 40,which are -mounted on the ro d an held in' through the rod 39 thesprings 40, lever 20,

16 except when it is and link 19 to the throttle-valve 16, thus settingthe throttle-valve in adesirednormal position. It will alsobe evidentthat the le-` ver 20 may be moved relatively .to the rod 39 by reason ofthe yielding connectlonbetween them. Means are provided for eifectlntemporary adjustment of the valve as fo lows: The lever' 20 is connectedwlth a governor device B, which is o eratively connected with theengine. As ed by ears 42 with the engine crank-shaft 43, an the governoris provided with a grooved collar 44, engaging directly wlth an arm-ofthe lever 20. As the sped of the, engine increases the lever 2O will eoperated in one direction, and as `it'decreases it will be operated inthe o posite direction b the governor in a wellown manner. he tendencyof the, springs 40, however, will always be to'bring the throttle-valveto the normal position, which is controlled by the hand-lever 21. Itisdesirable to be able to control the speed ofthe motor to produce a quicktemporary increase or decrease of speedin case of emergency and to dothis without changin the normal osition of the throttlevalve. o accompthis the controllin lever 20 is connected with a lever 45 by a 46. Asthe governoris a yieldinidevice, it is ossible b .raising or lowerin thorizonta arm oft e lever 45 by the oot or otherwise to adjusttherthrottle-valve 1-6 at will.

As soon as the lever 45 is released the springs 40 will readjust thethrottle-valve 16 to normal position subject to the control `of thegovernor. A

In Fi .-2 is shown a different form of the means or setting thethrottle-valve. Referring to this igure, it will be seen that the 39 isconnected directly to an elbow-le-l an operating-handle 48. The

ver 47 havin ed wlth a suitable spring-pawl lever is rovi sector 50 tohold the lever in any desired position. As shown in E'g. 2, the lever 45is connected 'directl with the valve-operating arm 18 by the ro 46, andthe valve-arm 18 is connected by a link `19EL with the lever 20.

`The connection between link 19 and the lever 20 is a yieldingconnection consisting of springs 19h, confined on the rod 19a andbearinn opposite sides of the lever 20.

o erating the devices shown in Fig. 2

the va ve isset to normal -position by the lever 47. The foot-lever' 45is pivoted reely and does not affect the position of the valvepositively operated, The spnng connection 19 permits the valve 16 to beoperated to some extent by the foot-lever 45 without moving the lever20, which is controlled by the overnor and by the locking device 49 50.l his prevents in a measure in- "terference between the movements of the56 in the carbnreter proper.

own, 1t 1s connectengages with a stationary toothed deemed best at thebe understood that t overnor and the loperation of the valve 16 l y thefoot-lever 45.

Referring to 6 and 7, 51 indicates the gasolene float-o amber, intowhich the gasolene isdelivered through a ipe 52. The supply of gasoleneis re ate 1n the usu'al manner by a valvel 53,' controlled b a floatV54. Th'e gasolene vpasses from t e floatchamberthrough a conduit to thenozzle From the nozsu'ction into the mixingzle 56it`is drawn b yadmitted to the mixingchamber 57. Air 1s chamber from inlets58 in acylindrical arm or proection 59. The' openings 58 are contro ed by acylindrical rocking valve 60 having an arm 61. The valve 60 may beoperated either manually or automatically, as desired. The air enteringthrough the valve 60 passes into the mixing-'chamber 57 through o enings62, which surround the nozzle 56. Tlhis air is drawn in by suction andmingles with the gasolene-spray from the nozzle. When-theengine' isworking at hi h speed, an additional supply of air is drawn 'directly'into the mixing-.c which areteontrolled b puppet-valve 64. It will benoted, that .the openings 63 and valve 64 are in direct line with t emixture-discharge conduit 17. The air from the openings 63 is thereforedrawn directly through the middle of the mixingamber57 through openings63,

a springactuated of the air with the mixture co nozzle 56 and theair-inlets 62. The uppetvalve is controlled by a spring 64", e tensionofwhich is adjustable bymeansof a nut '64". To prevent dlrect passage ofair from the valve-openings 58 to the mixing-chamber, the nozzle issurroundedl bya wall or cas 65, in the lower ortion of which the ope s62 are Aform The casing of the carburetor A is preferably rovided withpassages 66, through which ot gases or hot water may be circulated towarm the carbureter and assist in vaporizin the hydrocarbon. Thepassages 66 are s own as having an inlet 67 and an outlet 68.

It will be evident that the. various means described may b e embodied inother mechanical forms than those shown without departing from the sirit and scope of the present invention. T e forms'illustrated are thosepresent time; but it will einvention is not limited tothe precisemechanism illustrated and described.

No claim is herein 'made to the carburetor described and illustrated,las the same forms the subject-matter of a divisional application.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-' IOO IOS

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1. The combination with a mixer and vapf onzer, of a mixture-valve,means for locking 13o i said valve yieldinglyagainst movement iiirveither directionfrom a given'lposition, and

y said valve either directlon from a given normal position,

a governor, and means connecting said governorwith said valve wherebythe valve is automatically moved in either direction from its normal'position without disturbing said lockinl means. a

f 3. he combination with a mixer and vap` orizer, of amiXture-valve,means for locking said valve yieldingly against-movement in v eitherdirection from a glven normal position, means controlled bythe speed ofthe engine for adjusting vsaid valve 1n either direction from its normalposition without disturbing said locking means, and manually-operated yvmeans for adjusting said valve Without disf v turbin said lockingmeans.

' 4.A T e eombinatlon with a mixer and vaporizer, of a mixture-valvecontrolling the discharge from said mixer and vaporizer, means includingan elastic connection for locking said valveagainst movement in eitherdirection from a given normal position, a governor, and connections foradjusting said valve automatically without disturbing said lock- -1ngmeans, said elastic connection permitting thevvalve to be moved 'ineither direction from its normal position; t f

In testimonyl whereof I have signed my name. to this specification inthepresence'of two subscribing witnesses. l'

. CHARLES SCHMIDT.

Witnesses:

' RUssELL HUFF Y MARK C.TA`YLOR. y

